Orthopedic back support pillow



FIG. 1 is a top front, and left side perspective view of the orthopedic back support pillow showing my new design;

FIG. 2 is a top, rear and right side perspective view thereof;

FIG. 3 is a left side elevational view thereof, the right side elevational view being identical thereto; and

FIG. 4 is a front elevational view thereof; 

The ornamental design for an orthopedic back support pillow, as shown. 